Relay

Abstract

The invention relates to the technical field of electronic control devices, in particular to a relay. The relay comprises a magnetic circuit structure, wherein the magnetic circuit structure comprises a yoke assembly and an armature assembly; the armature assembly is located on one side of the yoke assembly in the first direction. The yoke assembly is provided with a first clapping surface, the armature assembly is provided with a second clapping surface, and the second clapping surface and the first clapping surface can be selectively attracted; the elastic buffer piece is mounted on the magnetic circuit structure; the elastic buffering piece has a first state and a second state, and when the elastic buffering piece is in the first state, the elastic buffering piece is located between the first beating face and the second beating face and used for buffering impact force generated when the second beating face and the first beating face are attracted; and when the elastic buffer piece is in the second state, the elastic buffer piece is moved out, and the second beating surface and the first beating surface are attracted. According to the relay, by optimizing the internal structure, pull-in noise can be reduced, the requirement of a user for noise is met, and the use experience of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic control devices, and in particular to a relay. Background Art

[0002] Relays, as a common electronic control device, are widely used in automatic control circuits. They primarily consist of a control system (input circuit) and a controlled system (output circuit). Their core function is to use a smaller current to control the on / off of a larger current, acting as an "automatic switch."

[0003] During use, the armature and yoke in the relay attract each other, producing a clashing sound. This clashing noise is quite high in existing relays, failing to meet customer requirements for a noise level of 60dB or less and significantly impacting the user experience. Summary of the Invention

[0004] An embodiment of the present invention provides a relay that can reduce pull-in noise by optimizing its internal structure, thereby meeting users' requirements for noise and improving their experience.

[0005] An embodiment of the present invention provides a relay, comprising:

[0006] A magnetic circuit structure comprising a yoke assembly and an armature assembly; the armature assembly is located on one side of the yoke assembly along a first direction and is rotatable relative to the yoke assembly; the yoke assembly is provided with a first engaging surface on a side facing the armature assembly in the first direction, and the armature assembly is provided with a second engaging surface on a side facing the yoke assembly in the first direction, the second engaging surface being selectively engageable with the first engaging surface;

[0007] An elastic buffer is installed on the magnetic circuit structure; the elastic buffer has a first state and a second state. When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between the first and second mating surfaces to cushion the impact force when the second and first mating surfaces are attracted to each other; when the elastic buffer is in the second state, the elastic buffer moves out of the first and second mating surfaces, and the second and first mating surfaces are attracted to each other.

[0008] According to some embodiments of the present invention, the elastic buffer is mounted on the armature assembly; when the elastic buffer is in the first state, the elastic buffer is used to elastically abut the first engagement surface.

[0009] According to some embodiments of the present invention, the elastic buffer is mounted on the yoke assembly; when the elastic buffer is in a first state, the elastic buffer is configured to elastically abut against the second engagement surface.

[0010] According to some embodiments of the present invention, the elastic buffer comprises a fixing portion and a deforming portion, and the elastic buffer is mounted on the yoke assembly via the fixing portion;

[0011] The yoke assembly is provided with a slot hole, and the opening of the slot hole is located at least on the side of the yoke assembly facing the armature assembly in the first direction; along the first direction, the deformation portion is located in the slot hole as an orthographic projection of the yoke assembly; when the elastic buffer is in the first state, at least part of the deformation portion is located between the first snapping surface and the second snapping surface; when the elastic buffer is in the second state, the deformation portion is received in the slot hole.

[0012] According to some embodiments of the present invention, the armature assembly includes two armatures, which are spaced apart along the first direction; the yoke assembly includes two contact portions, which are oppositely arranged along the second direction, and are positioned between the two armatures along the first direction, and each of the contact portions is provided with a first engaging surface on a side facing the armature in the first direction; each end of each armature in the second direction is provided with a second engaging surface, and the second engaging surface is located on the side of the armature facing the contact portion in the first direction, and each second engaging surface is selectively engaged with the corresponding first engaging surface; the second direction is perpendicular to the first direction;

[0013] When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between a set of corresponding first and second engagement surfaces.

[0014] According to some embodiments of the present invention, the slot includes a first opening located on one side of the contact portion along a first direction;

[0015] Alternatively, the slot includes first openings located on opposite sides of the contact portion along the first direction;

[0016] Alternatively, the slot includes first openings located at opposite sides of the contact portion along the first direction and a second opening located at one side of the contact portion in the second direction, and the second opening is connected to the first opening.

[0017] According to some embodiments of the present invention, the elastic buffer is provided on each side of the contact portion in the first direction, and the slot is provided on each side of the contact portion in the first direction; the elastic buffer corresponds to the slot one by one;

[0018] Alternatively, the contact portion is provided with one elastic buffer member on each side in the first direction, and the contact portion is provided with one slot; the two elastic buffer members installed on the same contact portion correspond to the same slot;

[0019] Alternatively, the elastic buffer is provided on one side of the contact portion in the first direction, the contact portion is provided with a slot, and the elastic buffer corresponds to the slot; when the elastic buffer is in the first state, the same elastic buffer is located between the first engaging surfaces and the corresponding second engaging surfaces on both sides of the contact portion in the first direction;

[0020] Alternatively, the contact portion is provided with an elastic buffer on one side in the first direction, the contact portion is provided with a slot hole, and the elastic buffer corresponds to the slot hole; when the elastic buffer is in the first state, the elastic buffer is located between the first mating surface on one side of the contact portion in the first direction and the corresponding second mating surface.

[0021] According to some embodiments of the present invention, the relay further comprises a coil assembly, one end of each of the contact portions is fixed to one end of the coil assembly in the second direction, and the other end of the contact portion is bent to the same side of the coil assembly in the first direction;

[0022] Along the first direction, each of the contact portions is provided with the elastic buffer on a side facing the coil assembly.

[0023] According to some embodiments of the present invention, in a plane perpendicular to a third direction, a cross section of the deformation portion is a corrugated structure; the third direction is perpendicular to the second direction and the first direction.

[0024] According to some embodiments of the present invention, the elastic buffer is a spring structure, one end of the deformable portion is connected to the fixed portion to form a fixed end, and the other end of the deformable portion forms a free end, and the free end is used to elastically abut the second mating surface in the first state.

[0025] According to some embodiments of the present invention, the deformation portion is provided with a hollow area between the fixed end and the free end.

[0026] According to some embodiments of the present invention, the fixing portion is fixed to a side of the contact portion facing the armature; the deformable portion includes a first connecting segment, a second connecting segment, and a third connecting segment, one end of the first connecting segment is connected to the fixing portion, the other end of the first connecting segment is connected to one end of the second connecting segment, the other end of the second connecting segment is connected to one end of the third connecting segment, and the other end of the third connecting segment forms a free end for elastically abutting the second engaging surface;

[0027] In a plane perpendicular to the third direction, the second connecting segment and the first connecting segment form a first V-shaped structure, and the opening of the first V-shaped structure faces the second mating surface in the first direction; the third connecting segment and the second connecting segment form a second V-shaped structure, the opening of the second V-shaped structure faces away from the second mating surface in the first direction, and a side surface of the second V-shaped structure formed by the third connecting segment and the second connecting segment facing the second mating surface is used to abut the second mating surface in the first state; the third direction is perpendicular to the second direction and the first direction.

[0028] According to some embodiments of the present invention, in a plane perpendicular to the third direction, the first connecting segment is connected to the second connecting segment in an arc-shaped transition; and the third connecting segment is connected to the second connecting segment in an arc-shaped transition.

[0029] According to some embodiments of the present invention, the elastic buffer is a metal buffer.

[0030] According to some embodiments of the present invention, the elastic buffer is fixedly connected to the magnetic circuit structure.

[0031] According to some embodiments of the present invention, the elastic buffer is riveted to the magnetic circuit structure.

[0032] One embodiment of the above invention has at least the following advantages or beneficial effects:

[0033] The relay provided by the present application includes a magnetic circuit structure and an elastic buffer, the magnetic circuit structure includes an armature assembly and a yoke assembly, the elastic buffer is installed on the magnetic circuit structure, and the elastic buffer has a first state and a second state. When the elastic buffer is in the first state, the elastic buffer is placed between the first and second mating surfaces along the first direction, so as to elastically abut the first and / or second mating surfaces before the first and second mating surfaces are attracted. Accordingly, the elastic buffer can buffer the first and second mating surfaces that are in relative motion, reduce the relative movement speed of the first and second mating surfaces, and thereby reduce the impact energy of the first and second mating surfaces. When the elastic buffer is in the second state, the elastic buffer moves out of the directly opposite area of ​​the first and second mating surfaces, so that the first and second mating surfaces are effectively attracted, and a magnetic conductive channel is formed between the first and second mating surfaces.

[0034] Therefore, the relay provided in the present application can effectively reduce the impact energy between the first and second mating surfaces when they are attracted by arranging an elastic buffer in the magnetic circuit structure, thereby utilizing the buffering effect of the elastic buffer, thereby effectively reducing the impact noise, meeting the user's requirements for noise, and improving the user's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Shown is a schematic structural diagram of a relay provided in an embodiment of the present application;

[0036] Figure 2 Shown is Figure 1 Schematic diagram of the structure of the relay in application;

[0037] Figure 3 Shown is Figure 1 Structural diagram of the middle part structure;

[0038] Figure 4 Shown is Figure 3 Schematic diagram of the three-dimensional structure of the inner contact part of the middle yoke iron assembly;

[0039] Figure 5 Shown is Figure 3 A schematic diagram of the three-dimensional structure of the elastic buffer;

[0040] Figure 6 Shown is Figure 4 Middle contact and Figure 5 Schematic diagram of the structure after the middle elastic buffer is assembled;

[0041] Figure 7 Shown is Figure 6 Schematic diagram of the structure in plan;

[0042] Figure 8 Shown is Figure 7Cross-sectional view at AA in the middle;

[0043] Figure 9 Shown is Figure 8 An enlarged schematic diagram of the elastic buffer;

[0044] Figure 10 Shown is a plan view of the internal structure of a relay provided in an embodiment of the present application;

[0045] Figure 11 Shown is Figure 10 Cross-sectional view at the middle BB;

[0046] Figure 12 Shown is a plan view of the internal structure of a relay provided in an embodiment of the present application;

[0047] Figure 13 Shown is Figure 12 Schematic diagram of the internal structure of the relay in application.

[0048] The following are the descriptions of the reference numerals:

[0049] 100, magnetic circuit structure; 110, yoke assembly; 111, contact portion; 1111, slot; 112, iron core; 120, armature assembly; 121, armature; 122, bracket; 200, elastic buffer; 210, fixing portion; 220, deformation portion; 221, first connecting section; 222, second connecting section; 223, third connecting section; 300, coil assembly; 400, contact assembly; 410, dynamic contact member; 420, static contact member; P1, first mating surface; P2, second mating surface; S1, hollow area; X, first direction; Z, second direction; Y, third direction. DETAILED DESCRIPTION

[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0051] An embodiment of the present application provides a relay. Figure 1 Shown is a schematic structural diagram of a relay provided in an embodiment of the present application; Figure 2 Shown is Figure 1 The schematic diagram of the relay structure in application. Figure 1 and Figure 2As shown, the relay includes a magnetic circuit structure 100 and an elastic buffer 200. The magnetic circuit structure 100 includes a yoke assembly 110 and an armature assembly 120. The armature assembly 120 is located on one side of the yoke assembly 110 along a first direction X and is rotatable relative to the yoke assembly 110. To clearly illustrate the first direction in the embodiments of this application, the first direction is indicated by an X in the drawings.

[0052] like Figure 1 and Figure 2 As shown, the yoke assembly 110 has a first engaging surface P1 on the side facing the armature assembly 120 in the first direction X, and the armature assembly 120 has a second engaging surface P2 on the side facing the yoke assembly 110 in the first direction X. The second engaging surface P2 can selectively engage with the first engaging surface P1. In other words, along the first direction X, the armature assembly 120 and the yoke assembly 110 have engaging surfaces on the sides facing each other. Specifically, the yoke assembly 110 has the first engaging surface P1, and the armature assembly 120 has the second engaging surface P2. The second engaging surface P2 rotates with the armature assembly 120 relative to the yoke assembly 110, thereby allowing the second engaging surface P2 to selectively engage with the first engaging surface P1.

[0053] Figure 3 Shown is Figure 1 The structural diagram of the middle part of the structure; please combine Figure 3 refer to Figure 1 and Figure 2 In the structure shown, the elastic buffer 200 is installed on the magnetic circuit structure 100. The elastic buffer 200 has a first state and a second state. Figure 1 As shown, when the elastic buffer 200 is in the first state, at least a portion of the elastic buffer 200 is located between the first mating surface P1 and the second mating surface P2, so as to cushion the impact force when the second mating surface P2 and the first mating surface P1 are attracted to each other. Figure 2 As shown, when the elastic buffer 200 is in the second state, the elastic buffer 200 moves out of the first mating surface P1 and the second mating surface P2, and the second mating surface P2 is attracted to the first mating surface P1.

[0054] Specifically, when the elastic buffer 200 is in the first state, the elastic buffer 200 is positioned between the first and second mating surfaces P1, P2 along the first direction X, so as to elastically abut the first and second mating surfaces P1, P2 before the first and second mating surfaces P1, P2 engage. Accordingly, the elastic buffer 200 can buffer the first and second mating surfaces P1, P2 in relative motion, reducing the relative speed of movement between the first and second mating surfaces P1, P2, and thereby reducing the impact energy between the first and second mating surfaces P1, P2. When the elastic buffer 200 is in the second state, the elastic buffer 200 moves out of the area directly opposite the first and second mating surfaces P1, P2, so that the first and second mating surfaces P1 can effectively engage with each other, forming a magnetic channel between the first and second mating surfaces P1, P2.

[0055] It is understood that when the elastic buffer 200 switches from the first state to the second state, it gradually accumulates energy to absorb the energy generated by the first and second engaging surfaces P1, P2 during the collision. When the elastic buffer 200 switches from the second state to the first state, it can recover its elasticity to provide a cushioning effect before the first and second engaging surfaces P1, P2 engage again.

[0056] It should be noted that the relay provided in the embodiment of the present application can utilize the buffering effect of the elastic buffer 200 to effectively reduce the impact energy between the first mating surface P1 and the second mating surface P2 when they are attracted, by providing an elastic buffer 200 in the magnetic circuit structure 100, thereby effectively reducing the impact noise, meeting the user's requirements for noise, and improving the user's usage experience.

[0057] When specifically setting the installation position of the elastic buffer member 200 , there are various possibilities for the installation position of the elastic buffer member 200 .

[0058] In one embodiment, Figures 1 to 2 As shown, the elastic buffer 200 is mounted on the yoke assembly 110. When the elastic buffer 200 is in the first state, the elastic buffer 200 is used to elastically abut the second engagement surface P2. It should be understood that during the rotation of the armature assembly 120 relative to the yoke assembly 110, the elastic buffer 200 is in a stationary state along with the yoke assembly 110.

[0059] Specifically, when the elastic buffer 200 installed on the yoke assembly 110 is in the first state, at least a portion of the elastic buffer 200 is located between the first mating surface P1 and the second mating surface P2; when the second mating surface P2 gradually approaches the first mating surface P1, the elastic buffer 200 elastically abuts against the second mating surface P2, so as to utilize the buffering effect of the elastic buffer 200 to effectively reduce the impact energy of the first mating surface P1 and the second mating surface P2 when they are attracted, thereby effectively reducing the impact noise, meeting the user's requirements for noise, and improving the user's usage experience.

[0060] It is worth noting that the yoke assembly 110 in this embodiment is in a stationary state in the relay and does not move relative to other structures. Therefore, when the elastic buffer 200 is installed on the yoke assembly 110, the space inside the relay can be reasonably utilized, which facilitates the arrangement of other structural components in the relay, thereby improving the integration of various structural components in the relay and meeting miniaturization requirements.

[0061] In one embodiment, the elastic buffer 200 is mounted on the armature assembly 120. When the elastic buffer 200 is in the first state, the elastic buffer 200 is configured to elastically abut the first engagement surface P1. It should be understood that during the rotation of the armature assembly 120 relative to the yoke assembly 110, the elastic buffer 200 moves with the armature assembly 120.

[0062] Specifically, the elastic buffer 200 in this embodiment follows the armature assembly 120. When the elastic buffer 200 is in the first state, at least a portion of the elastic buffer 200 is located between the first and second engagement surfaces P1 and P2. As the second engagement surface P2 gradually approaches the first engagement surface P1, the elastic buffer 200 elastically abuts against the first engagement surface P1. This effectively reduces the impact energy of the first and second engagement surfaces P1 and P2 during engagement by utilizing the buffering effect of the elastic buffer 200, thereby effectively reducing impact noise, meeting user noise requirements, and enhancing the user experience.

[0063] Of course, elastic buffers 200 can also be provided on both the armature assembly 120 and the yoke assembly 110, so that the elastic buffer 200 installed on the yoke assembly 110 elastically abuts the second snapping surface P2, and the elastic buffer 200 installed on the armature assembly 120 elastically abuts the first snapping surface P1, and the details are not repeated here.

[0064] When the elastic buffer 200 is installed on the yoke assembly 110, the following structural design can be performed on the elastic buffer 200. Of course, when the elastic buffer 200 is installed on the armature assembly 120, the following structural design can also be referred to, and the details will not be repeated here.

[0065] Figure 4 Shown is Figure 3A schematic diagram of the three-dimensional structure of the inner contact portion 111 of the middle yoke assembly 110; Figure 5 Shown is Figure 3 A schematic diagram of the three-dimensional structure of the elastic buffer 200; Figure 6 Shown is Figure 4 The middle contact portion 111 and Figure 5 Schematic diagram of the structure of the elastic buffer 200 after assembly. In one embodiment, as Figure 5 As shown, the elastic buffer 200 includes a fixing portion 210 and a deforming portion 220. It is understood that in order to clearly understand the structure of the elastic buffer 200 in the embodiment of the present application, Figure 5 The fixing portion 210 and the deforming portion 220 are schematically separated by a dotted line. Of course, the specific separation position of the fixing portion 210 and the deforming portion 220 is not limited thereto.

[0066] Please combine Figure 5 refer to Figure 4 and Figure 6 In the structure shown, the elastic buffer 200 is mounted on the yoke assembly 110 through the fixing portion 210; Figure 4 As shown, the yoke assembly 110 is provided with a slot 1111, the opening of the slot 1111 is at least located on one side of the yoke assembly 110 facing the armature assembly 120 in the first direction X; along the first direction X, the orthographic projection of the deformation portion 220 on the yoke assembly 110 is located in the slot 1111. Figure 6 refer to Figure 1 In the structure shown, when the elastic buffer 200 is in the first state, at least part of the deformation portion 220 is located between the first mating surface P1 and the second mating surface P2; Figure 6 refer to Figure 2 In the structure shown, when the elastic buffer 200 is in the second state, the deforming portion 220 is received in the slot 1111 .

[0067] It should be noted that when the elastic buffer 200 is in the first state, the deformable portion 220 is used to elastically abut the second engaging surface P2 provided on the armature assembly 120. This utilizes the cushioning effect of the deformable portion 220 to effectively reduce the impact energy between the first and second engaging surfaces P1 and P2 during engagement, thereby effectively reducing impact noise, meeting user noise requirements, and enhancing the user experience. When the elastic buffer 200 is in the second state, the deformable portion 220 is retracted within the slot 1111, avoiding the second engaging surface P2, allowing the second engaging surface P2 to effectively engage with the first engaging surface P1.

[0068] In one embodiment, please refer to Figure 1 and Figure 2In the illustrated structure, the armature assembly 120 includes two armatures 121 spaced apart along a first direction X; the yoke assembly 110 includes two contact portions 111 disposed opposite each other along a second direction Z, the contact portion 111 being positioned between the two armatures 121 along the first direction X, and each contact portion 111 being provided with a first engaging surface P1 on a side facing the armature 121 in the first direction X; each end of each armature 121 in the second direction Z being provided with a second engaging surface P2, and the second engaging surface P2 being located on the side of the armature 121 facing the contact portion 111 in the first direction X, with each second engaging surface P2 selectively engaging with a corresponding first engaging surface P1; the second direction Z is perpendicular to the first direction X. To provide a clearer understanding of the relay provided in the embodiments of the present application, the second direction is indicated by Z in the drawings.

[0069] It is understandable that if Figure 1 As shown, the armature assembly 120 includes four second snapping surfaces P2. Specifically, along the first direction X, each armature 121 is provided with a second snapping surface P2 at each end thereof facing the yoke assembly 110 in the second direction Z. Correspondingly, the yoke assembly 110 includes four first snapping surfaces P1. Specifically, each contact portion 111 is provided with a first snapping surface P1 on each side thereof in the first direction X. It is noteworthy that each of the four first snapping surfaces P1 within the yoke assembly 110 corresponds to a second snapping surface P2 within the armature assembly 120 and selectively engages with the corresponding second snapping surface P2.

[0070] like Figure 1 As shown, when the elastic buffer 200 is in the first state, at least a portion of the elastic buffer 200 is located between a set of corresponding first and second interlocking surfaces P1 and P2. In other words, the elastic buffer 200 provides a buffering effect between the set of corresponding first and second interlocking surfaces P1 and P2.

[0071] Of course, multiple elastic buffer members 200 can be provided as required, so that the elastic buffer members 200 can play a buffering role between two, three or even four corresponding groups of first mating surfaces P1 and second mating surfaces P2.

[0072] It can be understood that the relay in this embodiment is a magnetic latching relay. Figure 1As shown, two armatures 121 are fixed by a bracket 122, and a permanent magnet is installed in the bracket 122. The contact state (normally open or normally closed) of the magnetic latching relay is maintained by the magnetic force generated by the permanent magnet. When power is not supplied, the contacts are in the initial setting state, such as the normally open contact is in the open state and the normally closed contact is in the closed state. When a positive (or negative) pulse voltage is applied to the coil, the magnetic poles generated by the coil excitation interact with the magnetic poles of the permanent magnet. Like polarities repel each other, and opposite polarities attract each other, causing the polarity of the permanent magnet to change, thereby driving the armature 121 to move, causing the contacts to instantly complete the transition between normally open and normally closed states. Once the contact state changes, even if the coil is de-energized, the magnetic force of the permanent magnet will keep the contacts in the new state until the next power is supplied to change the state.

[0073] For example, when the normally closed contact of the relay is in a closed state, as shown in FIG. Figure 2 As shown, it can be defined that when the first engaging surface P1 on one side of the contact portion 111 in the first direction X and the corresponding second engaging surface P2 are attracted, the first engaging surface P1 and the corresponding second engaging surface P2 on the opposite side of the other contact portion 111 in the first direction X are also in an attracted state. It is worth noting that Figure 2 There is a gap between the first mating surface P1 on the other side of each contact portion 111 in the first direction X and the corresponding second mating surface P2.

[0074] When the contacts in the relay switch from normally closed to normally open, Figure 2 Each set of mutually attracted first and second engaging surfaces P1 and P2 are separated, and the first engaging surface P1 and the corresponding second engaging surface P2 on the other side of each contact portion 111 opposite to each other in the first direction X are attracted.

[0075] In other words, Figure 2 As shown, in the magnetic circuit structure 100 , two groups of corresponding first clapping surfaces P1 and second clapping surfaces P2 at diagonal positions are synchronously attracted or separated.

[0076] When setting the structure of the elastic buffer 200, the elastic buffer 200 can be set only between one set of the first snapping surfaces P1 and the second snapping surfaces P2 in the two sets of corresponding first snapping surfaces P1 and the second snapping surfaces P2 set along the diagonal line, so as to simplify the number of internal components, reduce the difficulty of assembly, reduce the weight of the relay, and meet the demand for lightweight relay.

[0077] It is worth noting that the armature assembly 120 in the relay provided in the embodiment of the present application is not limited to including two armatures 121, but may also include a single armature 121. Furthermore, the yoke assembly 110 is not limited to including two contact portions 111, but may also include one contact portion 111 or three contact portions 111. In this case, the relay provided in the embodiment of the present application forms a snap-on relay.

[0078] When the slot hole 1111 is provided on the contact portion 111 , there are many possible structures of the slot hole 1111 , and the slot hole 1111 may be at least one of the following structures.

[0079] Structure 1: Figure 4 As shown, the slot 1111 includes a first opening a1 located on opposite sides of the contact portion 111 along the first direction X and a second opening a2 located on one side of the contact portion 111 along the second direction Z, wherein the second opening a2 is connected to the first opening a1. It should be understood that in order to more clearly understand the structure of the slot 1111, Figure 4 The first opening a1 and the second opening a2 are exemplarily shown in the dotted frame, and due to the viewing angle of the drawing, Figure 4 Only one first opening a1 is shown.

[0080] It is worth noting that when the slot 1111 has both the first opening a1 and the second opening a2, the slot 1111 is formed on the surface of the contact portion 111 as shown in FIG. Figure 4 The notch structure shown enables the elastic buffer 200 in the second state to effectively avoid.

[0081] Structure 2: Slot 1111 includes a first opening located on one side of contact portion 111 along first direction X, for receiving deformable portion 220 in the second state. It is understood that the reduced cutting area of ​​contact portion 111 in this structure 2 ensures the structural strength of contact portion 111, reduces the risk of fracture of contact portion 111, and thereby extends the service life of yoke assembly 110.

[0082] Structure 3: The slot 1111 includes first openings located at opposite sides of the contact portion 111 along the first direction X. In this case, the slot 1111 can be provided along the first direction X through the contact portion 111 .

[0083] It can be understood that the slots 1111 in the first and third structures can be understood as through slots, and the slots 1111 in the second structure can be understood as sunken slots.

[0084] Combined with the arrangement of the elastic buffer 200 between different first mating surfaces P1 and second mating surfaces P2, and the structural characteristics of the slot 1111, there are multiple possible correspondences between the elastic buffer 200 and the slot 1111, at least one of the following correspondences.

[0085] Structural Form 1: An elastic buffer member 200 is provided on each side of the contact portion 111 in the first direction X, and a slotted hole 1111 is provided on each side of the contact portion 111 in the first direction X; the elastic buffer members 200 correspond one-to-one with the slotted holes 1111. When the elastic buffer members 200 are in the second state, each elastic buffer member 200 is received within the corresponding slotted hole 1111. It should be understood that in this structural form 1, an elastic buffer member 200 is provided on both sides of each contact portion 111 in the first direction X. Furthermore, the slotted holes 1111 in this structural form 1 can be any of the slotted holes 1111 described in Structures 1 to 3.

[0086] Structural Form 2: An elastic buffer 200 is provided on each side of the contact portion 111 in the first direction X, and the contact portion 111 is provided with a slot 1111. The two elastic buffers 200 installed on the same contact portion 111 correspond to the same slot 1111. It should be understood that in this structural form 2, each contact portion 111 is provided with an elastic buffer 200 on both sides in the first direction X, and the slot 1111 in this structural form 2 is a through slot, so that the two elastic buffers 200 share the same slot 1111.

[0087] Structural form three: An elastic buffer 200 is provided on one side of the contact portion 111 in the first direction X, and a slot 1111 is provided on the contact portion 111, and the elastic buffer 200 corresponds to the slot 1111; when the elastic buffer 200 is in the first state, the same elastic buffer 200 is located between the first mating surface P1 and the corresponding second mating surface P2 on both sides of the contact portion 111 in the first direction X.

[0088] It should be understood that in this third structural form, each contact portion 111 is provided with only one elastic buffer 200, and the elastic buffer 200 acts only on a set of corresponding first and second mating surfaces P1 and P2. The slots 1111 in this third structural form can be through slots or recessed slots, and the details are not further described.

[0089] Figure 7 Shown is Figure 6 Schematic diagram of the structure in plan; Figure 8 Shown is Figure 7 For example, when the slot hole 1111 in the first structural form has openings on both sides in the first direction, the assembly structure of the contact portion 111 and the elastic buffer 200 can be as follows: Figure 7 and Figure 8 shown.

[0090] Structural form four: An elastic buffer 200 is provided on one side of the contact portion 111 in the first direction X, and a slot 1111 is provided on the contact portion 111, and the elastic buffer 200 corresponds to the slot 1111; when the elastic buffer 200 is in the first state, the elastic buffer 200 is located between the first mating surface P1 and the corresponding second mating surface P2 on one side of the contact portion 111 in the first direction X.

[0091] It should be understood that in this fourth structural form, each contact portion 111 is provided with only one elastic buffer 200, and this elastic buffer 200 can be applied to the two sets of first snapping surfaces P1 and second snapping surfaces P2 located on both sides of the contact portion 111 in the first direction X. In other words, the first snapping surfaces P1 and the corresponding second snapping surfaces P2 located on both sides of the contact portion 111 in the first direction X share the same elastic buffer 200.

[0092] The slot 1111 in the fourth structural form can be a through slot.

[0093] In one embodiment, Figure 1 and Figure 2 As shown, the relay provided in the embodiment of the present application also includes a coil assembly 300, one end of each contact portion 111 is fixed to one end of the coil assembly 300 in the second direction Z, and the other end of the contact portion 111 is bent to the same side of the coil assembly 300 in the first direction X.

[0094] Figure 10 Shown is a plan view of the internal structure of a relay provided in an embodiment of the present application; Figure 11 Shown is Figure 10 Cross-sectional view at the middle BB. Figure 10 refer to Figure 11 In the structure shown, in one embodiment, the yoke assembly 110 also includes an iron core 112, which is inserted into the coil in the coil assembly 300, and a contact portion 111 is fixed to the iron core 112 to expose one end of the coil in the second direction Z, and the other contact portion 111 is fixed to the iron core 112 to expose the other end of the coil in the second direction Z.

[0095] It is worth noting that the core 112 and the contact portion 111 in the yoke assembly 110 can be an integral structure or a segmented structure. For example, when the core 112 and the contact portion 111 are a segmented structure, the core 112 can be first passed through the coil bobbin in the coil assembly 300, and then the two contact portions 111 are riveted on both sides of the core 112.

[0096] Please continue to refer to Figure 11In the structure shown, in one embodiment, along the first direction X, each contact portion 111 is provided with an elastic buffer 200 on the side facing the coil assembly 300 to reasonably utilize the space inside the relay and improve the integration of the structure inside the relay.

[0097] Figure 9 Shown is Figure 8 An enlarged schematic diagram of the elastic buffer 200. Figure 9 As shown, in one embodiment, the cross-section of the deformed portion 220 is a corrugated structure in a plane perpendicular to the third direction Y; the third direction Y is perpendicular to the second direction Z and the first direction X. For a clearer understanding of the relay provided in the embodiment of the present application, the third direction is indicated by Y in the drawings.

[0098] It should be noted that the pleated structure of the deformation part 220 can be deformed or expanded during elastic abutment to optimize the buffering deformation of the deformation part 220, effectively reducing the impact energy of the first mating surface P1 and the second mating surface P2 during attraction, thereby effectively reducing the impact noise, meeting the user's requirements for noise, and improving the user's experience.

[0099] It is understandable that the pleated structure may have irregular shape changes, or may have corrugated shapes, or may only include one arc-shaped surface.

[0100] In one embodiment, please combine Figure 8 Continue to refer Figure 9 In the structure shown, the elastic buffer 200 is a spring structure, which has a simple structure and low manufacturing cost. Compared with complex springs or other elastic devices, the spring structure is more compact, takes up less space, and is more suitable for use in space-constrained environments.

[0101] Specifically, such as Figure 8 As shown, within the spring structure, one end of the deformable portion 220 is connected to the fixed portion 210 to form a fixed end, while the other end of the deformable portion 220 forms a free end. In this embodiment, the deformable portion 220 and the fixed portion 210 are integrated into the same spring structure, which can reduce the number of parts, lower the difficulty and cost of assembly, and improve the integrity and reliability of the structure.

[0102] It is noteworthy that in this embodiment, the free end of the deformable portion 220 is configured to abut the second engaging surface P2 in the first state. This structural arrangement enables the deformable portion 220 to elastically deform in a timely manner under the action of an external force, thereby adjusting the position of the free end in the first direction X. This effectively absorbs the impact energy of the first and second engaging surfaces P1, P2 during engagement, thereby effectively reducing impact noise, meeting user noise requirements, and enhancing the user experience.

[0103] In one embodiment, please refer to Figure 5 and Figure 6 In the structure shown, the deformation portion 220 is provided with a hollow area S1 between the fixed end and the free end to enhance the deformation ability of the elastic buffer 200 after being impacted, so that the elastic buffer 200 can effectively absorb the impact energy of the first mating surface P1 and the second mating surface P2 when they are attracted, thereby effectively reducing the impact noise, meeting the user's requirements for noise, and improving the user's experience.

[0104] In addition, the hollow area S1 can also reduce the weight of the elastic buffer 200, so as to facilitate lightweight configuration of the relay.

[0105] In a specific embodiment, please continue to combine Figure 1 refer to Figure 5 、 Figure 6 and Figure 8 In the structure shown, the fixed portion 210 is fixed to the side of the contact portion 111 facing the armature 121; the deformable portion 220 includes a first connecting segment 221, a second connecting segment 222 and a third connecting segment 223, one end of the first connecting segment 221 is connected to the fixed portion 210, the other end of the first connecting segment 221 is connected to one end of the second connecting segment 222, the other end of the second connecting segment 222 is connected to one end of the third connecting segment 223, and the other end of the third connecting segment 223 forms a free end for elastically abutting the second mating surface P2.

[0106] In order to clearly understand the structure of the elastic buffer member 200 in the embodiment of the present application, Figure 5 The first connecting section 221, the second connecting section 222 and the third connecting section 223 are schematically separated by dotted lines. Of course, the specific separation positions of the first connecting section 221, the second connecting section 222 and the third connecting section 223 are not limited thereto.

[0107] like Figure 5 、 Figure 6 and Figure 8 As shown, in a plane perpendicular to the third direction Y, the second connecting segment 222 and the first connecting segment 221 form a first V-shaped structure, and the opening of the first V-shaped structure faces the second mating surface P2 in the first direction X, and the third connecting segment 223 and the second connecting segment 222 form a second V-shaped structure, and the opening of the second V-shaped structure faces away from the first direction X. Figure 1 The second mating surface P2 is shown in the figure, and the second V-shaped structure formed by the third connecting segment 223 and the second connecting segment 222 has a side surface facing the second mating surface P2 for abutting the second mating surface P2 in the first state.

[0108] When the elastic buffer 200 is in the first state, the second V-shaped structure formed by the second connecting segment 222 and the third connecting segment 223 is located between the first engaging surface P1 and its corresponding second engaging surface P2. When the second engaging surface P2 contacts the second V-shaped structure, the second V-shaped structure moves in the first direction X toward the contact portion 111 until it is received within the slot 1111.

[0109] It is worth noting that when the second V-shaped structure formed by the second connecting segment 222 and the third connecting segment 223 moves along the first direction X, the first V-shaped structure formed by the first connecting segment 221 and the second connecting segment 222 may deform or move synchronously along the first direction X.

[0110] In one embodiment, Figure 8 and Figure 9 As shown, in a plane perpendicular to the third direction Y, the first connecting segment 221 is connected to the second connecting segment 222 in an arcuate transition; the third connecting segment 223 is connected to the second connecting segment 222 in an arcuate transition to avoid the elastic buffer 200 from scratching the armature 121, thereby improving the service life of the armature assembly 120.

[0111] In one embodiment, the elastic buffer 200 is a metal buffer. The metal gasket has high reliability, high temperature resistance, and excellent fatigue resistance, which can extend the service life of the elastic buffer 200 and ensure that the elastic buffer 200 can stably and effectively function between the first mating surface P1 and the second mating surface P2.

[0112] In a specific embodiment, the elastic buffer 200 is an integrated structure. This integrated structure can simplify the processing and installation process, thereby reducing manufacturing costs and improving production efficiency.

[0113] In one embodiment, the elastic buffer 200 is fixedly connected to the magnetic circuit structure 100. For example, the connection may be made by riveting, welding or other fixed connection methods.

[0114] It should be noted that the fixed connection not only reduces the risk of the elastic buffer 200 falling off the magnetic circuit structure 100, but also prevents the elastic buffer 200 from shifting relative to the magnetic circuit structure 100. Therefore, the fixed connection ensures that the elastic buffer 200 effectively performs its buffering function, thereby ensuring that the elastic buffer 200 effectively performs its buffering and noise reduction effects.

[0115] Figure 12 Shown is a plan view of the internal structure of a relay provided in an embodiment of the present application; Figure 13 Shown is Figure 12 The schematic diagram of the relay structure in application. Figure 12 and Figure 13As shown, the relay provided in the embodiment of the present application further includes a contact assembly 400 , which includes a moving contact 410 and a static contact 420 . The moving contact 410 moves with the armature assembly 120 to contact or separate from the static contact 420 .

[0116] In a specific configuration, the dynamic contact 410 is provided with a dynamic contact point, and the static contact 420 is provided with a static contact point. The contact and separation process of the dynamic contact 410 and the static contact 420 is essentially the contact and separation process of the dynamic contact point and the static contact point.

[0117] It is worth noting that the movable contact can be an independent structural member installed separately on the movable contact member 410, or the movable contact can be an integral structure with the movable contact member 410. Similarly, the static contact can be an independent structural member installed separately on the static contact member 420, or the static contact can be an integral structure with the static contact member 420.

[0118] Finally, it should be noted that: it is understandable that the various embodiments / implementations provided by the present invention can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0119] In the embodiments of the invention, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the invention based on the specific circumstances.

[0120] In the description of the embodiments of the invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the invention.

[0121] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0122] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A relay, characterized in that: include: A magnetic circuit structure, comprising a yoke assembly and an armature assembly; The armature assembly is located on one side of the yoke assembly along a first direction and is rotatable relative to the yoke assembly; the yoke assembly is provided with a first engaging surface on a side facing the armature assembly in the first direction, and the armature assembly is provided with a second engaging surface on a side facing the yoke assembly in the first direction, and the second engaging surface is selectively engageable with the first engaging surface; An elastic buffer is installed on the magnetic circuit structure; the elastic buffer has a first state and a second state. When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between the first and second mating surfaces to cushion the impact force when the second and first mating surfaces are attracted to each other; when the elastic buffer is in the second state, the elastic buffer moves out of the first and second mating surfaces, and the second and first mating surfaces are attracted to each other.

2. The relay according to claim 1, wherein: The elastic buffer is mounted on the armature assembly; when the elastic buffer is in a first state, the elastic buffer is used to elastically abut against the first engaging surface.

3. The relay according to claim 1, wherein: The elastic buffer is mounted on the yoke assembly; when the elastic buffer is in a first state, the elastic buffer is used to elastically abut the second engagement surface.

4. The relay according to claim 3, characterized in that The elastic buffer comprises a fixing portion and a deforming portion, and the elastic buffer is mounted on the yoke assembly via the fixing portion; The yoke assembly is provided with a slotted hole, wherein an opening of the slotted hole is at least located on a side of the yoke assembly facing the armature assembly in a first direction; Along the first direction, the orthographic projection of the deformed portion on the yoke assembly is located within the slot; When the elastic buffer is in a first state, at least a portion of the deformation portion is located between the first engagement surface and the second engagement surface; when the elastic buffer is in a second state, the deformation portion is received in the slot.

5. The relay according to claim 4, characterized in that The armature assembly includes two armatures, which are spaced apart along the first direction; the yoke assembly includes two contact portions, which are oppositely disposed along the second direction and positioned between the two armatures along the first direction, and each contact portion is provided with a first engaging surface on a side of the armature facing the first direction; each end of each armature in the second direction is provided with a second engaging surface, and the second engaging surface is located on the side of the armature facing the contact portion in the first direction, and each second engaging surface is selectively engaged with the corresponding first engaging surface; The second direction is perpendicular to the first direction; When the elastic buffer is in the first state, at least a portion of the elastic buffer is located between a set of corresponding first engagement surfaces and second engagement surfaces.

6. The relay according to claim 5, characterized in that The slot includes a first opening located on one side of the contact portion along a first direction; Alternatively, the slot includes first openings located on opposite sides of the contact portion along the first direction; Alternatively, the slot includes first openings located at opposite sides of the contact portion along the first direction and a second opening located at one side of the contact portion in the second direction, and the second opening is connected to the first opening.

7. The relay according to claim 5, characterized in that The elastic buffer is provided on each side of the contact portion in the first direction, and the slot is provided on each side of the contact portion in the first direction; the elastic buffer corresponds to the slot one by one; Alternatively, the contact portion is provided with one elastic buffer member on each side in the first direction, and the contact portion is provided with one slot; The two elastic buffer members installed on the same contact portion correspond to the same slot; Alternatively, the elastic buffer is provided on one side of the contact portion in the first direction, the contact portion is provided with a slot, and the elastic buffer corresponds to the slot; when the elastic buffer is in the first state, the same elastic buffer is located between the first engaging surfaces and the corresponding second engaging surfaces on both sides of the contact portion in the first direction; Alternatively, the contact portion is provided with an elastic buffer on one side in the first direction, the contact portion is provided with a slot hole, and the elastic buffer corresponds to the slot hole; when the elastic buffer is in the first state, the elastic buffer is located between the first mating surface on one side of the contact portion in the first direction and the corresponding second mating surface.

8. The relay according to claim 5, characterized in that The relay further includes a coil assembly, one end of each contact portion is fixed to one end of the coil assembly in the second direction, and the other end of the contact portion is bent to the same side of the coil assembly in the first direction; Along the first direction, each of the contact portions is provided with the elastic buffer on a side facing the coil assembly.

9. The relay according to claim 5, characterized in that In a plane perpendicular to a third direction, a cross section of the deformation portion is a corrugated structure; the third direction is perpendicular to the second direction and the first direction.

10. The relay according to claim 9, characterized in that The elastic buffer is a spring structure, one end of the deformable portion is connected to the fixed portion to form a fixed end, and the other end of the deformable portion forms a free end, and the free end is used to elastically abut the second engaging surface in the first state.

11. The relay according to claim 10, characterized in that The deformation portion is provided with a hollow area between the fixed end and the free end.

12. The relay according to claim 10, characterized in that The fixing portion is fixed to the side of the contact portion facing the armature; the deformable portion includes a first connecting segment, a second connecting segment, and a third connecting segment, one end of the first connecting segment is connected to the fixing portion, the other end of the first connecting segment is connected to one end of the second connecting segment, the other end of the second connecting segment is connected to one end of the third connecting segment, and the other end of the third connecting segment forms a free end for elastically abutting against the second engaging surface; In a plane perpendicular to the third direction, the second connecting segment and the first connecting segment form a first V-shaped structure, and the opening of the first V-shaped structure faces the second mating surface in the first direction; the third connecting segment and the second connecting segment form a second V-shaped structure, the opening of the second V-shaped structure faces away from the second mating surface in the first direction, and a side surface of the second V-shaped structure formed by the third connecting segment and the second connecting segment facing the second mating surface is used to abut the second mating surface in the first state; the third direction is perpendicular to the second direction and the first direction.

13. The relay according to claim 12, wherein: In a plane perpendicular to the third direction, the first connecting segment is connected to the second connecting segment in an arc-shaped transition; and the third connecting segment is connected to the second connecting segment in an arc-shaped transition.

14. The relay according to any one of claims 1 to 13, characterized in that: The elastic buffer is a metal buffer.

15. The relay according to any one of claims 1 to 13, characterized in that: The elastic buffer is fixedly connected to the magnetic circuit structure.

16. The relay according to claim 15, characterized in that The elastic buffer is riveted to the magnetic circuit structure.

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